US4679741A - Crusher with rotary plates - Google Patents

Crusher with rotary plates Download PDF

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Publication number
US4679741A
US4679741A US06/799,196 US79919685A US4679741A US 4679741 A US4679741 A US 4679741A US 79919685 A US79919685 A US 79919685A US 4679741 A US4679741 A US 4679741A
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US
United States
Prior art keywords
axis
crusher
plate
tubular housing
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US06/799,196
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English (en)
Inventor
Kolbjorn Hansen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Krupp Industietechnik GmbH
Fried Krupp AG
Original Assignee
Fried Krupp AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fried Krupp AG filed Critical Fried Krupp AG
Assigned to KRUPP INDUSTRIETECHNIK GMBH, D-4300 ESSEN 1, GERMANY reassignment KRUPP INDUSTRIETECHNIK GMBH, D-4300 ESSEN 1, GERMANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HANSEN, KOLBJORN
Assigned to FRIED. KRUPP GESELLSCHAFT MIT BESCHRANKTER HAFTUNG reassignment FRIED. KRUPP GESELLSCHAFT MIT BESCHRANKTER HAFTUNG ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HANSEN, KOLBJORN
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2/00—Crushing or disintegrating by gyratory or cone crushers
    • B02C2/02—Crushing or disintegrating by gyratory or cone crushers eccentrically moved
    • B02C2/04—Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis
    • B02C2/045—Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis and with bowl adjusting or controlling mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2/00—Crushing or disintegrating by gyratory or cone crushers
    • B02C2002/002—Crushing or disintegrating by gyratory or cone crushers the bowl being a driven element for providing a crushing effect

Definitions

  • the present invention relates to a crusher with rotary plates of the type recited in the preamble of the appurtenant claim 1.
  • a rotary-plate crusher of this type is disclosed in German Patent DAS-1,091,414 and comprises in addition to the above features, vertical ricochet bars which surround the crusher plates and are spaced a distance from the plate periphery.
  • the crusher would have to operate with a very high percentage of recycled material, because probably about 80% of the material will pass through the crusher without being crushed in the annular crushing zone between the plates.
  • the object of the present invention is to provide a crusher which has a crushing capacity many times greater than that of existing crushing machines of the same dimensions, while at the same time the amount of wear on the machine and the percentage of recycled material are kept within limits comparable to those of existing crusher machines.
  • the crusher plates of the apparatus execute both a rotary and a gyrating movement, the gyration occurring in the opposite direction of rotation in relation to the direction of rotation of the plates.
  • a particle which is fed into the crusher and becomes caught between the plates in the inner region of the annular crushing slot between the plates will be retained there and be subjected to crushing forces up to several times in the crushing slot before the crushed particles are flung out by centrifugal force from the annular crushing slot.
  • FIG. 1 shows an axial cross sectional view of the crusher
  • FIG. 2 shows the annular crushing zone of the crusher plates in plan view, indicating the path of movement of a particle during crushing.
  • the crusher shown in FIG. 1 comprises two crusher plates 1,2 disposed one above the other and spaced apart to form between the plates an annular crushing slot 4 with radial, outwardly-converging crushing surfaces 1',2', said plates 1,2 being rotatable about respective axes of rotation A,B which are non-parallel.
  • the upper plate 1 is provided with a central feed opening 3 with a funnel or tube 5 which projects downwardly into the opening 3 and which does not rotate during the rotation of the crusher plates, thereby ensuring that the feed material may pass unhindered by any centrifugal forces into the crushing slot 4 between the plates.
  • the lower plate 2 is provided with a downwardly extending shaft 6, the upper end of the shaft 6 being rotatably supported in a spherical bearing 7 that is concentric with the axis of rotation A of the upper plate 1 and is disposed within a bearing housing 8 which is rigidly connected to the machine support 9 for the crusher.
  • the shaft 6 is supported in a spherical bearing 10 that is eccentrically mounted on the upper end of a driven rotary shaft 11 mounted within the bearing housing 8 and disposed concentric with the axis of rotation A of the upper plate 1.
  • the downwardly extending shaft 6 of the lower plate 2 is provided with a gear wheel 12 in engagement with an internal rim gear 13 provided on the interior of the bearing housing 8.
  • the gear 12 rolls on the internal gear 13 and rotates the lower plate 2 in the opposite direction of its gyrating movement, which is produced owing to the lower eccentric support of the shaft 6, which causes the shaft to rotate or turn on its axis B about the axis of rotation A of the upper plate 1, an angle ⁇ being formed between said axes of rotation A,B.
  • the upper plate 1 which is mounted with bearings 14 in an upper bearing housing 15, is connected to the machine support 9 for the crusher machine by means of a spring assembly 16 in a manner known per se.
  • the spring assembly 16 permits the upper plate 1 to lift up from the lower plate 2 by overcoming the spring pressure of the spring assembly 16 so that the foreign body can exit through the slot.
  • the width of the slot 4, i.e., the distance between the upper and lower plates 1,2, can be adjusted by removing or inserting spacer members 17 arranged between two opposing flanges 18 and 19 which divide the machine support 9 into a lower part 9' and an upper part 9".
  • the above-mentioned driven shaft 11 is provided with a V-belt pulley 20 driven by V-belts 21 from a motor (not illustrated).
  • the crusher of the invention thus consists of two opposing crusher plates 1,2 which rotate at a selected number of revolutions per minute (rpm) while the lower plate 2 simultaneously executes a gyrating movement in the opposite direction of rotation at an rpm rate which is substantially higher than the number of revolutions per minute of the lower plate 2 about its axis of rotation B.
  • the gyrating movement is produced in that the motor (not shown) via the V-belts and pulley 20 turns the shaft 11, which via the eccentric bearing 10 at the upper end of the shaft causes the lower end of the shaft 6 on the lower plate 2 to rotate in a circular path.
  • the gear wheel 12 on the shaft 6, meshing with the internal rim gear 13, causes the shaft 6 and therefore the lower plate 2 to rotate about an axis C in an opposite direction of rotation in relation to the drive shaft 11.
  • the plates 1 and 2 of the crusher will execute a rotary movement as well as a gyrating movement, the gyration occurring in the opposite direction of rotation in relation to the direction of rotation of the plates 1,2.
  • the result thus obtained is shown schematically in FIG. 2, where the shaded area indicates the crushing surface of the plates.
  • a particle entering the crusher at position I, at the inside edge of the crushing zone, will be retained between the upper and lower plates 1,2.
  • the gyrating movement of the lower plate 2 will release the particle so that it is no longer retained by forces of friction between the plates.
  • the grain of material will continue in the direction imparted to it by the velocity of rotation, following the broken line 22 in the direction of position II. In the absence of any gyrating movement, the particle would then pass out of the annular crushing slot where crushing occurs.
  • This embodiment thus permits controlled crushing, since by determining the working angles in relation to the annular cross section and basic dimensions, one can predict how often the particle will be subjected to crushing action before being released from the crushing zone.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Crushing And Grinding (AREA)
US06/799,196 1982-04-22 1983-04-22 Crusher with rotary plates Expired - Fee Related US4679741A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO821312A NO150023C (no) 1982-04-22 1982-04-22 Tallerkenknuser
NO821312 1982-04-22

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US06567852 Continuation 1983-12-21

Publications (1)

Publication Number Publication Date
US4679741A true US4679741A (en) 1987-07-14

Family

ID=19886544

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/799,196 Expired - Fee Related US4679741A (en) 1982-04-22 1983-04-22 Crusher with rotary plates

Country Status (12)

Country Link
US (1) US4679741A (no)
EP (1) EP0106865B1 (no)
JP (1) JPS59500754A (no)
AU (1) AU1471483A (no)
BR (1) BR8307120A (no)
CA (1) CA1191822A (no)
DE (1) DE3367866D1 (no)
DK (1) DK150886C (no)
FI (1) FI72891C (no)
NO (1) NO150023C (no)
WO (1) WO1983003779A1 (no)
ZA (1) ZA832825B (no)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5718390A (en) * 1996-03-18 1998-02-17 Cedarapids, Inc. Gyratory crusher
US5775607A (en) * 1994-08-12 1998-07-07 Wescone Crushers Pty, Ltd. Head anti-rotational and sealing system for a gyratory crusher
US5810269A (en) * 1994-12-02 1998-09-22 Wescone Crushers Pty. Ltd. Gyratory crusher
US5938133A (en) * 1994-08-12 1999-08-17 Wescone Crushers Pty Ltd Support assembly for a gyratory crusher
WO2005037436A1 (en) * 2003-10-15 2005-04-28 Metso Minerals (Tampere) Oy Drive of a crusher and a crusher
US20080099589A1 (en) * 2006-10-25 2008-05-01 Cedarapids, Inc. Gyratory cone crusher with skewed non-co-planar conehead and main crusher centerlines
US8387905B2 (en) 2010-10-19 2013-03-05 Flsmidth A/S Modular shell for crusher device
US20160136648A1 (en) * 2013-07-22 2016-05-19 Imp Technologies Pty Ltd Adjustable super fine crusher

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402545B1 (en) * 1989-06-16 1993-09-15 Kabushiki Kaisha Iseki Kaihatsu Koki Crushing machine
US5762274A (en) * 1996-08-01 1998-06-09 Nordberg, Inc. Protection arrangement for a hopper seal on a fluid flushed conical crusher

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1030194A (en) * 1911-12-29 1912-06-18 Allis Chalmers Crusher.
US1031083A (en) * 1912-04-13 1912-07-02 Allis Chalmers Crusher.
US1226275A (en) * 1913-10-18 1917-05-15 Edgar B Symons Crushing-machine.
US1628619A (en) * 1926-08-09 1927-05-10 Allis Chalmers Mfg Co Crusher
US1641776A (en) * 1925-01-19 1927-09-06 Allis Chalmers Mfg Co Crusher
US1936728A (en) * 1931-05-12 1933-11-28 Utah Royalty Corp Device for crushing and pulverizing ore and other refractory material
US1993900A (en) * 1932-07-28 1935-03-12 Smith Engineering Works Crushing machine
US2716926A (en) * 1951-01-02 1955-09-06 Jackson And Church Company Apparatus for treating wood pulp
DE1091414B (de) * 1957-04-19 1960-10-20 Miroslav Holec Tellerbrecher
US3312404A (en) * 1964-03-19 1967-04-04 Walter R Allen Gyratory crusher and method of crushing and grinding ore
GB1081027A (en) * 1964-08-03 1967-08-31 Richier Sa Improvements in or relating to gyratory crushers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE465945C (de) * 1927-06-09 1928-09-28 Allis Chalmers Mfg Co Kreiselbrecher
FR1411834A (fr) * 1964-08-03 1965-09-24 Richier Sa Concasseur giratoire
JPS4832242A (no) * 1971-08-30 1973-04-27

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1030194A (en) * 1911-12-29 1912-06-18 Allis Chalmers Crusher.
US1031083A (en) * 1912-04-13 1912-07-02 Allis Chalmers Crusher.
US1226275A (en) * 1913-10-18 1917-05-15 Edgar B Symons Crushing-machine.
US1641776A (en) * 1925-01-19 1927-09-06 Allis Chalmers Mfg Co Crusher
US1628619A (en) * 1926-08-09 1927-05-10 Allis Chalmers Mfg Co Crusher
US1936728A (en) * 1931-05-12 1933-11-28 Utah Royalty Corp Device for crushing and pulverizing ore and other refractory material
US1993900A (en) * 1932-07-28 1935-03-12 Smith Engineering Works Crushing machine
US2716926A (en) * 1951-01-02 1955-09-06 Jackson And Church Company Apparatus for treating wood pulp
DE1091414B (de) * 1957-04-19 1960-10-20 Miroslav Holec Tellerbrecher
US3312404A (en) * 1964-03-19 1967-04-04 Walter R Allen Gyratory crusher and method of crushing and grinding ore
GB1081027A (en) * 1964-08-03 1967-08-31 Richier Sa Improvements in or relating to gyratory crushers

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5775607A (en) * 1994-08-12 1998-07-07 Wescone Crushers Pty, Ltd. Head anti-rotational and sealing system for a gyratory crusher
US5938133A (en) * 1994-08-12 1999-08-17 Wescone Crushers Pty Ltd Support assembly for a gyratory crusher
US5810269A (en) * 1994-12-02 1998-09-22 Wescone Crushers Pty. Ltd. Gyratory crusher
US5718390A (en) * 1996-03-18 1998-02-17 Cedarapids, Inc. Gyratory crusher
WO2005037436A1 (en) * 2003-10-15 2005-04-28 Metso Minerals (Tampere) Oy Drive of a crusher and a crusher
US20080099589A1 (en) * 2006-10-25 2008-05-01 Cedarapids, Inc. Gyratory cone crusher with skewed non-co-planar conehead and main crusher centerlines
US7810749B2 (en) * 2006-10-25 2010-10-12 Terex Usa, Llc Gyratory cone crusher with skewed non-co-planar conehead and main crusher centerlines
US20110000994A1 (en) * 2006-10-25 2011-01-06 Terex Usa, Llc Gyratory cone crusher with skewed non-co-planar conehead and main crusher centerlines
US8091818B2 (en) * 2006-10-25 2012-01-10 Terex Usa, Llc Gyratory cone crusher with skewed non-co-planar conehead and main crusher centerlines
US8387905B2 (en) 2010-10-19 2013-03-05 Flsmidth A/S Modular shell for crusher device
US20160136648A1 (en) * 2013-07-22 2016-05-19 Imp Technologies Pty Ltd Adjustable super fine crusher
US11007531B2 (en) * 2013-07-22 2021-05-18 Imp Technologies Pty Ltd Adjustable super fine crusher

Also Published As

Publication number Publication date
EP0106865B1 (en) 1986-11-26
DK591283D0 (da) 1983-12-22
NO821312L (no) 1983-10-24
DK591283A (da) 1983-12-22
DK150886B (da) 1987-07-13
DE3367866D1 (en) 1987-01-15
NO150023B (no) 1984-04-30
BR8307120A (pt) 1984-04-17
WO1983003779A1 (en) 1983-11-10
JPS59500754A (ja) 1984-05-04
FI834651A0 (fi) 1983-12-16
ZA832825B (en) 1984-01-25
FI72891B (fi) 1987-04-30
EP0106865A1 (en) 1984-05-02
FI834651A (fi) 1983-12-16
FI72891C (fi) 1987-08-10
NO150023C (no) 1984-08-08
CA1191822A (en) 1985-08-13
DK150886C (da) 1987-12-28
AU1471483A (en) 1983-11-21

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AS Assignment

Owner name: KRUPP INDUSTRIETECHNIK GMBH, D-4300 ESSEN 1, GERMA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HANSEN, KOLBJORN;REEL/FRAME:004494/0213

Effective date: 19860102

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Owner name: FRIED. KRUPP GESELLSCHAFT MIT BESCHRANKTER HAFTUNG

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HANSEN, KOLBJORN;REEL/FRAME:004573/0408

Effective date: 19860606

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Effective date: 19950719

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362